<template>
  <div class="container">
    <!-- 路径导航区域 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>知识管理</el-breadcrumb-item>
      <el-breadcrumb-item>心理知识管理</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 搜索区域 -->
    <el-row>
      <el-form :inline="true">
        <el-form-item label="心理知识名称">
          <el-input v-model="queryInfo.name" clearable @clear="queryList" placeholder="请输入心理知识名称"></el-input>
        </el-form-item>
        <el-form-item>
          <el-button type="primary" icon="el-icon-search" @click="queryList">搜索</el-button>
          <el-button type="success" icon="el-icon-plus" @click="addHeartKnowledge">新增心理知识</el-button>
        </el-form-item>
      </el-form>
    </el-row>



    <!-- 表格区域 -->
    <el-table :data="heartKnowledgeList" border style="width: 100%" :header-cell-style="{'text-align':'center'}"
      :cell-style="{'text-align':'center'}">
      <el-table-column width="80px" prop="id" label="ID" />
      <el-table-column prop="name" label="心理知识名称" />
      <el-table-column prop="simplyIntroduce" label="心理知识简介" />
      <el-table-column prop="img" label="心理知识图片">
        <template slot-scope="scope">
          <el-image style="width: 100px; height: 100px;" :src="url + 'downLoad?filename=' + scope.row.img"></el-image>
        </template>
      </el-table-column>
      <el-table-column :show-overflow-tooltip="true" prop="text" label="详细内容" />
      <el-table-column label="操作">
        <template #default="scope">
          <el-button icon="el-icon-edit" type="primary" size="mini" @click="updateHeartKnowledge(scope.row)">编辑</el-button>
          <el-button icon="el-icon-delete" type="danger" size="mini"
            @click="deleteHeartKnowledge(scope.row.id)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    <!-- 分页区域 -->
    <el-pagination background @size-change="handleSizeChange" @current-change="handleCurrentChange"
      :current-page="queryInfo.pageNum" :page-sizes="[1, 5, 10, 15, 20]" :page-size="queryInfo.pageSize"
      layout="total, sizes, prev, pager, next, jumper" :total="total">
    </el-pagination>

    <!-- 新增和修改的对话框 -->
    <el-dialog :title="title" :visible.sync="dialogFormVisible" @close="cancle">
      <el-form :model="heartKnowledge">
        <el-form-item label="心理知识名称" label-width="120px">
          <el-input placeholder="请输入心理知识名称" v-model="heartKnowledge.name"></el-input>
        </el-form-item>
        <el-form-item label="心理知识简介" label-width="120px">
          <el-input placeholder="请输入心理知识简介" v-model="heartKnowledge.simplyIntroduce"></el-input>
        </el-form-item>

        <el-form-item label="心理知识图片" label-width="120px">
          <!-- el-upload:上传组件
          action:选择图片是上传的接口
          List-type: 上传组件的类型
          on-success:上传成功的回调函数
          Limit: 限制只能上传一个文件
          on-preview:图片预览的事件
          on-remove:删除图片的事件 -->
          <el-upload :action="url + 'upload'" list-type="picture-card" :on-success="handleSuccess" :limit="1"
            :on-preview="handlePictureCardPreview" :on-remove="handleRemove" :file-list="fileList">
            <i class="el-icon-plus"></i>
          </el-upload>
          <!-- 预览图片 -->
          <el-dialog :visible.sync="dialogVisible">
            <img width="100%" :src="dialogImageUrl" alt="">
          </el-dialog>
        </el-form-item>

        <el-form-item label="详细内容" label-width="120px">
          <!-- 富文本编辑器组件 -->
          <!--          <quill-editor v-model="heartKnowledge.text"></quill-editor>-->
          <el-input placeholder="请输入详细内容" v-model="heartKnowledge.text"></el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="cancle">取 消</el-button>
        <el-button type="primary" @click="add">确 定</el-button>
      </div>
    </el-dialog>
  </div>
</template>


<script>
import { url } from '@/util/tools.js'
export default {
  data() {
    return {
      url: '',
      // 查询信息对象
      queryInfo: {
        name: '',
        pageNum: 1,
        pageSize: 5
      },
      total: 0,
      heartKnowledgeList: [],
      title: '', // 对话框标题
      dialogFormVisible: false, // 是否显示对话框
        heartKnowledge: {
        // 心里知识对象
        "id"  : '',
        "name"  : '',
        "simplyIntroduce"  : '',
        "img" :'',
        "text" :''
      },
      dialogVisible: false,
      dialogImageUrl: '',
      fileList: []
    }
  },
  methods: {


    addHeartKnowledge() {
      this.title = "新增心理知识";
      this.dialogFormVisible = true
    },


    // 添加/修改心理知识
    add() {
      if (this.title === '新增心理知识') {
        this.$http({
          method: "POST",
          url: 'heartknowledge/save',
          data: this.heartKnowledge
        }).then(res => {
          if (res.data.status === 200) {
            this.$message.success("添加成功")
            this.heartknowledgeIsNull()
            this.dialogFormVisible = false
            this.queryList()
          } else {
            this.$message.error("添加失败")
          }
        })
      } else if (this.title === '更新心理知识') {
        this.$http({
          method: "PUT",
          url: 'heartknowledge/update',
          data: this.heartKnowledge
        }).then(res => {
          if (res.data.status === 200) {
            this.$message.success("更新成功")
            this.heartknowledgeIsNull()
            this.dialogFormVisible = false
            this.queryList()
          } else {
            this.$message.error("更新失败")
          }
        })
      }
      this.fileList = []
    },
    cancle() {
      this.dialogFormVisible = false
      this.heartknowledgeIsNull()
      this.queryList()
    },




    // 处理上传成功的函数
    handleSuccess(response) {
      // 把上传后的图片路径，交给文章对象的tabularChart
      this.heartKnowledge.img = response.message;
    },

    // 删除图片的事件
    handleRemove(file, fileList) {
      console.log(file, fileList);
      // 移除数据
      this.heartKnowledge.img = '';
    },

    // 预览图片事件
    handlePictureCardPreview(file) {
      this.dialogImageUrl = file.url;
      this.dialogVisible = true;
    },


    updateHeartKnowledge(row) {
      this.title = "更新心理知识"
      this.heartKnowledge = row
      this.dialogFormVisible = true
      this.fileList = [{
        name: row.img,
        url: url + 'downLoad?filename=' + row.img
      }];
    },


    deleteHeartKnowledge(id){
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then().then(() => {
        this.$http.delete('heartknowledge/delete/' + id).then((resp) => {
          if (resp.data.status == 200) {
            this.$message.success(resp.data.message);
            this.queryInfo.pageNum = 1
            this.queryList();
          } else {
            this.$message.error(resp.data.message);
          }
        })
      }) .catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
    },



    queryList() {
      if (this.queryInfo.name !== '') {
        this.queryInfo.pageNum = 1
      }
      this.$http.get('heartknowledge/page', {
        params: this.queryInfo
      }).then(res => {
        if (res.data.status == 200) {
          this.heartKnowledgeList = res.data.data.list;
          this.total = res.data.data.total
          console.log(res)
        } else {
          this.$message.error('查询失败!')
        }
      })
    },
    // 设置heartknowledge为Null
    heartknowledgeIsNull() {
      this.heartKnowledge = {
        "id"  : '',
        "name"  : '',
        "simplyIntroduce"  : '',
        "img" :'',
        "text" :''
      }
    },
    handleSizeChange(size) {
      // console.log('每页显示数量发生改变');
      this.queryInfo.pageSize = size
      this.queryInfo.pageNum = 1
      this.queryList()
    },
    handleCurrentChange(num) {
      // console.log('页码发生改变');
      this.queryInfo.pageNum = num
      this.queryList()
    }
  },
  mounted() {
    this.queryList();
    // 动态的获取tool.js中的url，并赋值给当前组件的全局url
    this.url = url;
  }
}
</script>
<style>
.el-breadcrumb {
  margin-bottom: 15px;
  padding: 0 0 15px;
  border-bottom: 1px solid #ddd;
}

.el-pagination {
  margin-top: 15px;
}

.el-link {
  padding: 0 5px;
}

/**设置富文本编辑器的最小高度，注意style中不能使用scoped **/
.ql-container {
  min-height: 200px;
}
</style>
